Home / 2,135.16-2,945.70-1,250.64

Finding the Fourth Proportional to 2,135.16, 2,945.70 and 1,250.64

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Solution

The fourth proportional to 2,135.16, 2,945.70 and 1,250.64 is: 1,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.16 : 2,945.70 = 1,250.64 : x
  2. Step 2: Convert to fraction form
    2,135.16/2,945.70 = 1,250.64/x
  3. Step 3: Cross multiply
    2,135.16x = 2,945.70 × 1,250.64
  4. Step 4: Simplify right side
    2,135.16x = 3,684,010.25
  5. Step 5: Solve for x
    x = 3,684,010.25/2,135.16
  6. Step 6: Final answer
    x = 1,725.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.